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Finding the Fourth Proportional to 545.24, 817.52 and 271.19

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Solution

The fourth proportional to 545.24, 817.52 and 271.19 is: 406.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.24 : 817.52 = 271.19 : x
  2. Step 2: Convert to fraction form
    545.24/817.52 = 271.19/x
  3. Step 3: Cross multiply
    545.24x = 817.52 × 271.19
  4. Step 4: Simplify right side
    545.24x = 221,703.25
  5. Step 5: Solve for x
    x = 221,703.25/545.24
  6. Step 6: Final answer
    x = 406.62

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.